The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Apr. 22, 2016
Kyushu University, National University Corporation, Fukuoka, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Yuji Oki, Fukuoka, JP;
Kinichi Morita, Tokyo, JP;
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka, JP;
USHIO DENKI KABUSHIKI KAISHA, Toyko, JP;
Abstract
The purpose of the present invention is to provide an optical member and the like which enable suppression of diffusion of stray light due to a pigment even when the optical member and the like are used adjacent to a light guiding part through which incident light is transmitted. The optical member is configured to be used adjacent to the light guiding part through which the incident light is transmitted and to attenuate the incident light. The optical member has a dispersed carbon particle part that is formed as a result of dispersion of carbon particles in a particular region in a silicone resin. The carbon particles are stray light diffusion suppressing particles for suppressing the intensity of light being incident onto the carbon particles and diffused.